CN103540210B - Environment-friendly water-based OP protective paint composition, and preparation and use thereof - Google Patents
Environment-friendly water-based OP protective paint composition, and preparation and use thereof Download PDFInfo
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- CN103540210B CN103540210B CN201310463834.1A CN201310463834A CN103540210B CN 103540210 B CN103540210 B CN 103540210B CN 201310463834 A CN201310463834 A CN 201310463834A CN 103540210 B CN103540210 B CN 103540210B
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Abstract
The invention discloses an environment-friendly water-based OP protective paint composition, and preparation and a use thereof. The composition comprises 18-30 parts of water-based main resin, 1-10 parts of curing agent, 20-40 parts of functional auxiliary resin, 0-15 parts of cosolvent, 10-55 parts of deionized water, 0.4-3 parts of coalescing agent, 0.3-0.8 part of wetting agent, 0.1-0.4 part of defoaming agent and 1-1.5 parts of pH regulator. For preparation, the water-based main resin, the functional auxiliary resin and the curing agent are orderly added, and stirred at a low speed; the coalescing agent, the cosolvent and the de-ionized water are evenly mixed together, or the coalescing agent is added while stirring after the cosolvent and the deionized water are evenly mixed together, and then the mixture is stirred at a low speed; the wetting agent and the pH regulator are added and stirred at a middle speed; then the defoaming agent is added to the mixture and stirred evenly at a high speed; therefore, the environment-friendly water-based OP protective paint composition is obtained. Compared with the prior art, the paint composition disclosed by the invention is safe and nontoxic, low in cost, low in content of readily oxidizable substances, low in smell, good in coating property, high in curing efficiency, good in heat resistance and excellent in adhesive force.
Description
Technical field
The invention belongs to paint field is and in particular to a kind of environment-friendly water-based OP protective coating compositionss and its preparation, purposes.
Background technology
OP protective coating is also known as finishing oil, instant food, drug packaging printing aluminium foil surface institute coating protectant.It can improve
The antiacid alkali erosiveness of aluminium foil, extends the shelf-life of medicine；Protection printing layer, enables ink effectively glutinous with Al foil substrate
Close, do not fall off, do not damage.In fast-developing today's society, manufacturing enterprise not only more focuses on production efficiency and packaging processing
Speed, it is also proposed higher requirement to the performance of protection foil layer simultaneously.
Packaging Aluminum Foil OP protective coating is mainly solvent based product at present, and it uses a large amount of volatile organic solvents,
It is also easy to produce a large amount of volatile organic matters (VOCs), pollute environment, and there is certain potential safety hazard；Existing a small amount of water on the market
Property product use, but generally existing drying temperature is high compared with solvent based product, and curing rate is slow, poor heat resistance, readily oxidizable substance
High deficiency.
Above-mentioned a variety of factor constrains the development of Packaging Aluminum Foil OP protective coating, need a environment-friendly type high-temperature resistant,
The aqueouss OP protective coating of low readily oxidizable substance.
Content of the invention
It is an object of the invention to overcoming the shortcomings of that above-mentioned prior art exists, provide a kind of safety non-toxic, low cost, low
Readily oxidizable substance, coating are good, curing rate is fast, heat-resist, adhesive force is good environment-friendly water-based OP protective coating compositionss and its
Preparation, purposes.
The purpose of the present invention is achieved through the following technical solutions：
In a first aspect, the present invention relates to a kind of environment-friendly water-based OP protective coating compositionss, each including following parts by weight
Component：
Preferably, the main resin of described aqueouss is one or more of water soluble acrylic acid, aqueous polyurethane, waterborne polyester.
Preferably, described firming agent is aggretion type high imino group methyl-etherified melmac, aggretion type part methyl-etherified
One or more of melmac, haplotype height methyl-etherified melmac.It can be contained in main resin with aqueouss
Some active group hydroxyl effects, improve the heat resistance of coating.
Preferably, described feature assisted resin be organosilicon-modified acrylic, self-crosslinking acrylic, polyurethane-modified third
One or more of olefin(e) acid.
Preferably, described cosolvent is one of ethanol, isopropanol or two kinds.
Preferably, described coalescents are one or more of n-butyl alcohol, propylene glycol monomethyl ether, Lauryl Alcohol ester.
Preferably, described wetting agent is one or more of anionic wetting agents, non-ionic wetting agent.
Preferably, described anionic wetting agents are one of polyacrylic acid sodium salt, polycarboxylate sodium, sodium hexameta phosphate
Or it is several；Described non-ionic wetting agent is polyoxyethylene alkyl ether, acetylene ethylene glycol, in polyoxyethylene glycol Arrcostab
One or more.
Preferably, described defoamer is one or more of modified polyorganosiloxane, modified silicon ketone, mineral oilses.
Preferably, described pH adjusting agent be triethylamine, monoethanolamine, N, N- dimethylethanolamine, AMP-95 (2- amino-
One or more of 2- methyl isophthalic acid-propanol).
Second aspect, the invention still further relates to a kind of preparation method of aforesaid environment-friendly water-based OP protective coating compositionss, bag
Include following steps：
A, main for described aqueouss resin, feature assisted resin, firming agent are put in reactor successively, control mixing speed
For 400～500 revs/min, stirring at low speed is uniform；
B, by described coalescents, cosolvent, deionized water mix homogeneously or by described cosolvent, deionized water mixing
After uniformly, it is added in reactor in the state of stirring, control mixing speed to be 400～500 revs/min, stir；To
Sequentially add described wetting agent, pH adjusting agent in reactor, control mixing speed to be 600～800 revs/min, stir；Again
Add described defoamer in reactor, control mixing speed to be 900～1200 revs/min, stir 30～40min, make mixing
Uniformly, described environment-friendly water-based OP protective coating compositionss are obtained final product.
The third aspect, the invention still further relates to a kind of aforesaid environment-friendly water-based OP protective coating compositionss apply as protection foil
The purposes of layer, described environment-friendly water-based OP protective coating compositionss are diluted by coating weight requirement, and roller is applied on Packaging Aluminum Foil,
Through 150 DEG C～180 DEG C of temperature, time 10s～15s continuous oven drying, film-forming.After drying under above-mentioned drying temperature, time,
The OP protective coating compositionss of the present invention have good adhesion and high-fire resistance, aluminium foil can be provided protection well make
With.
Preferably, the mixed solution of the second alcohol and water that the diluent that described dilution adopts is 1: 1 for mass ratio.
Compared with prior art, the present invention, with water as main dispersing medium, using one-component resin, has beneficial effect as follows
Really：
1st, environmental protection：With water-base resin as main film forming substance, it is substantially free of organic solvent, volatile organic matter (VOCs) contains
Amount is extremely low, and abnormal smells from the patient is extremely low；
2nd, technique for applying is simple, application cost is low：Using one-component resin it is not necessary to premixing before upper machine, simple to operate；
3rd, storage stability is good, and the suitability is wide；
4th, drying only needs 10～15s, the drying time of more existing coating 20～40s, and efficiency greatly promotes；
5th, drying only needs 150 DEG C～170 DEG C, the drying temperature of 190 DEG C～220 DEG C of more existing coating, and energy consumption substantially reduces；
6th, aluminium foil surface only need to be coated with 0.5～1 micron of thick OP protective coating, after above-mentioned drying temperature, solidification under the time,
Heat resistance can reach 270 degree, and more general aqueouss OP protective coating is high 20～40 degree.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some deformation can also be made and improve.These broadly fall into the present invention
Protection domain.
Embodiment 1
The environment-friendly water-based OP protective coating compositionss of the present embodiment, comprise the component shown in table 1 and parts by weight.Its preparation
Method comprises the following steps：
(1) get the raw materials ready according to each component shown in table 1 and content (weight portion)：
(2) main for aqueouss resin, feature assisted resin, firming agent are put in reactor, and 400 revs/min of low speed stirs
Mix 10min, make mix homogeneously；
(3) after cosolvent, deionized water, coalescents mix homogeneously, it is added in reactor in the case of stirring,
400 revs/min of stirring 10min of low speed, make mix homogeneously；
(4) wetting agent, pH adjusting agent, 700 revs/min of stirring 15min of middling speed are sequentially added in reactor；
(5) add defoamer in reactor, 1200 revs/min are stirred 40 minutes at a high speed, obtain environment-friendly water-based OP protection
Coating composition.
The environment-friendly water-based OP protective coating compositionss of the present embodiment as the application of drug packaging aluminum foil protecting agent, specifically
As follows：
The environment-friendly water-based OP protective coating obtaining is diluted to 18%～20% solid content by coating weight requirement, uses 200
Mesh steel rider is applied on drug packaging aluminium foil, through 150 DEG C～160 DEG C of temperature, time 10s～12s continuous oven drying, is solidified into
Film, so, OP protective coating has good adhesion and high-fire resistance.After tested, push 1 second in two kilograms of pressure, heatproof
Have no irritating odor when can reach 250 degree, and sealing.
Embodiment 2
The environment-friendly water-based OP protective coating compositionss of the present embodiment, comprise the component shown in table 1 and parts by weight.Its preparation
Method comprises the following steps：
(1) get the raw materials ready according to each component shown in table 1 and content (weight portion)：
(2) main for aqueouss resin, feature assisted resin, firming agent are put in reactor successively, and 400 revs/min of low speed
Clock stirs 5min, makes mix homogeneously；
(3) after cosolvent, deionized water, coalescents mix homogeneously, it is added in reactor in the case of stirring,
400 revs/min of stirring 20min of low speed, make mix homogeneously；
(4) wetting agent, pH adjusting agent, 600 revs/min of stirring 10min of middling speed are added in reactor；
(5) add defoamer in reactor, 1000 revs/min are stirred 30 minutes at a high speed, obtain environment-friendly water-based OP protection
Coating.
The environment-friendly water-based OP protective coating compositionss of the present embodiment as the drug packaging application of PTP aluminum foil protecting agent,
Specific as follows：
The environment-friendly type aqueous OP protective coating compositionss obtaining are diluted to 20%～23% consolidate and contain by coating weight requirement
Amount, is applied on drug packaging PTP aluminium foil with 250 mesh ceramic rollers, dries through 160 DEG C～170 DEG C of temperature, time 12s～15s
Dry, film-forming, so, OP protective coating has good adhesion and high-fire resistance.After tested, push 1 in two kilograms of pressure
Second, heatproof can reach 270 degree, and has no irritating odor when sealing.
Embodiment 3
The environment-friendly water-based OP protective coating compositionss of the present embodiment, comprise the component shown in table 1 and parts by weight.Its preparation
Method comprises the following steps：
(1) get the raw materials ready according to each component shown in table 1 and content (weight portion)：
(2) main for aqueouss resin, feature assisted resin, firming agent are put in reactor, and 450 revs/min of low speed stirs
Mix 7min, make mix homogeneously；
(3) after deionized water, coalescents mix homogeneously, it is added in reactor in the case of stirring, low speed 450
Rev/min stirring 15min, make mix homogeneously；
(4) wetting agent, pH adjusting agent, 800 revs/min of stirring 20min of middling speed are added in reactor；
(5) add defoamer in reactor, 900 revs/min are stirred 35 minutes at a high speed, obtain environment-friendly water-based OP protection and apply
Feed composition.
The environment-friendly water-based OP protective coating compositionss of the present embodiment as the application of food packaging aluminum foil protecting agent, specifically
As follows：
The environment-friendly water-based OP protective coating compositionss obtaining are diluted to 15%～25% solid content by coating weight requirement,
It is applied on food packaging aluminium foil with 200 mesh steel riders, through 160 DEG C～180 DEG C of temperature, time 10s～13s continuous oven drying, Gu
Chemical conversion film, so, OP protective coating compositionss have good adhesion and high-fire resistance.After tested, push 1 in two kilograms of pressure
Second, heatproof can reach 260 degree, and has no irritating odor when sealing.
Comparative example 1
The OP protective coating compositionss of the present embodiment, are that (it is limited that triumphant chemicals are tieed up in Shanghai to existing solvent based product on market
Company, OP325-F), using acrylic resin and part butyl ether melmac firming agent compound system.Its using method
Comprise the following steps：
(1) solvent ethyl ester, butanone in mass ratio 1: 1 are put in reactor, then put into polyester resin, and 500 turns of low speed/
Minute stirring 30min, makes mix homogeneously；
(2) part butyl ether melmac firming agent, 600 revs/min of stirrings of low speed are added in reactor
20min, makes mix homogeneously.
The solvent based product of the present embodiment is as the application of drug packaging aluminum foil protecting agent, specific as follows：
The solvent based product obtaining is diluted to 15%～20% solid content by coating weight requirement, is applied with 200 mesh steel riders
, in PET film, through 190 DEG C～220 DEG C of temperature, time 20s～40s continuous oven drying, film-forming, after tested, in two public affairs for cloth
Jin pressure pushes 1 second, and heatproof can reach 250 degree, but during heat-sealing, irritant abnormal smells from the patient sheds.
The component of table 1 embodiment 1～3 and its parts by weight
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (6)
1. a kind of environment-friendly water-based OP protective coating compositionss are it is characterised in that be grouped into by each group of following parts by weight：
Described firming agent is aggretion type high imino group methyl-etherified melmac, aggretion type part methyl-etherified tripolycyanamide tree
One or more of fat, haplotype height methyl-etherified melmac；
Described feature assisted resin is organosilicon-modified acrylic, self-crosslinking acrylic, in polyurethane-modified acrylic acid one
Plant or several；
Described coalescents are one or more of n-butyl alcohol, propylene glycol monomethyl ether, Lauryl Alcohol ester；
Described defoamer is one or more of modified silicon ketone, mineral oilses；
Described wetting agent is one or more of anionic wetting agents, non-ionic wetting agent；
The main resin of described aqueouss is one or more of aqueous acrylic emulsion, aqueous polyurethane, waterborne polyester.
2. environment-friendly water-based OP protective coating compositionss according to claim 1 are it is characterised in that described cosolvent is second
One of alcohol, isopropanol or two kinds.
3. environment-friendly water-based OP protective coating compositionss according to claim 1 are it is characterised in that described anionic moistening
Agent is one or more of polyacrylic acid sodium salt, polycarboxylate sodium, sodium hexameta phosphate；Described non-ionic wetting agent is polyoxy
One or more of vinyl alkyl ether, acetylene ethylene glycol, polyoxyethylene glycol Arrcostab.
4. environment-friendly water-based OP protective coating compositionss according to claim 1 are it is characterised in that described pH adjusting agent is three
Ethamine, monoethanolamine, N, one or more of N- dimethylethanolamine, AMP-95.
5. a kind of preparation method of environment-friendly water-based OP protective coating compositionss according to claim 1 is it is characterised in that wrap
Include following steps：
A, main for described aqueouss resin, feature assisted resin, firming agent are put in reactor successively, control the mixing speed to be
400～500 revs/min, stir；
B, by after described coalescents, cosolvent, deionized water mix homogeneously, be added in reactor in the state of stirring,
Control mixing speed to be 400～500 revs/min, stir；Sequentially add described wetting agent, pH adjusting agent in reactor,
Control mixing speed to be 600～800 revs/min, stir；Add described defoamer again in reactor, control stirring speed
Spend for 900～1200 revs/min, stir 30～40min, make mix homogeneously, obtain final product described environment-friendly water-based OP protective coating combination
Thing.
6. a kind of environment-friendly water-based OP protective coating compositionss according to claim 1 are as the purposes of protection foil coating,
It is characterized in that, by described environment-friendly water-based OP protective coating compositionss by coating weight requirement mass ratio be 1:1 second alcohol and water
Mixed solution dilution, be applied on Packaging Aluminum Foil, through 150 DEG C～180 DEG C of temperature, time 10s～15s continuous oven drying, Gu
Chemical conversion film, you can.
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| CN105969010B (en) * | 2016-06-01 | 2019-07-05 | 珠海市美筑新材料有限公司 | A kind of water soluble paint and preparation method thereof of resistance to dish-washing machine |
| CN106566400A (en) * | 2016-10-26 | 2017-04-19 | 上海维凯光电新材料有限公司 | Water varnish for protection of printable aluminum foil for drug packing and preparation method of water varnish |
| CN107057496A (en) * | 2017-04-27 | 2017-08-18 | 河北晨阳工贸集团有限公司 | Coiled material water paint and preparation method |
| CN108003722A (en) * | 2017-12-11 | 2018-05-08 | 湖南太子化工涂料有限公司 | A kind of indoor water paint and preparation method |
| TWI648357B (en) * | 2018-03-19 | 2019-01-21 | 蔡孜宏 | Paper container substrate and coating liquid component thereof, and preparation method of coating liquid |
| CN109679429B (en) * | 2018-12-28 | 2021-07-06 | 中国印刷科学技术研究院有限公司 | Water-based varnish for inkjet printing and method for producing same |
| WO2020232722A1 (en) * | 2019-05-23 | 2020-11-26 | 河北比尔尼克新材料科技股份有限公司 | Water-based paint, preparation method for same, and applications thereof in manufacturing antitheft door or heating apparatus |
| CN116554766A (en) * | 2023-03-07 | 2023-08-08 | 佛山市儒林化工有限公司 | High-solid-content low-energy-consumption environment-friendly water-based gloss oil and preparation method thereof |
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Address after: 201512 Jinshan District Jinshan Road, Shanghai, No. 5099 Applicant after: Shanghai Chengying New Materials Co., Ltd. Applicant after: SHANGHAI WEIKAI OPTOELECTRONIC NEW MATERIALS CO., LTD. Address before: 201512 Jinshan District Jinshan Road, Shanghai, No. 5099 Applicant before: Shanghai Chengying New Materials Co., Ltd. Applicant before: Weikai Chemical-Product Co., Ltd., Shanghai |
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